Table 3.

Conditional Analysis of Factors Associated with Inappropriate Antimicrobial Recommendations

Variable	Unadjusted odds ratio (95% CI*)	P value	Adjusted odds ratio† (95% CI*)	P value
Inaccurate communication (vs. accurate)	1.8 (0.93–3.6)	0.08	2.1 (1.0–4.4)	0.05
Patient age, years	0.99 (0.97–1.0)	0.17	0.98 (0.96–1.0)	0.11
Intensive care unit patient location (vs. ward)	0.67 (0.30–1.5)	0.34
Surgical service caller (vs. non- surgical)	1.4 (0.67–2.7)	0.40
Hospital length of stay, days	0.99 (0.96–1.0)	0.68
Weekend day of call (vs. weekday)	0.49 (0.24–1.0)	0.05	0.56 (0.23–1.4)	0.20
Female patient sex (vs. male)	1.0 (0.52–1.9)	1.0
Patient location prior to admission
Home	1	-	1	-
Different acute care center	1.2 (0.56–2.6)	0.63	1.4 (0.59–3.3)	0.46
Intermediate or long-term center	7.2 (1.5–35.7)	0.02	7.1 (1.3–37.7)	0.02
Caller length of training post graduate year 1 (vs. ≥2)	0.81 (0.38–1.7)	0.58
Indication
Empiric	1	-
Definitive	1.1 (0.51–2.5)	0.79
Prophylactic	0.77 (0.13–4.6)	0.78
Charlson comorbidity index	1.2 (1.0–1.4)	0.02	1.2 (1.1–1.5)	0.01
Consult attending antimicrobial recommendation (vs. none)	1.9 (0.35–9.9)	0.46
ASP‡ practitioner in hospital during call (vs. out of hospital)	0.74 (0.37–1.5)	0.39
Call time after 5 p.m. (vs. before)	2.2 (0.77–6.1)	0.14	1.7 (0.49–5.8)	0.41

Note: only inaccurate communications and potential confounders were included in the multivariable model.

^*95% confidence interval;

^†adjusted for other variables in the multivariable model;

^‡antimicrobial stewardship program